• cell body: 5 - 100 microns diameter

• dendrites: branching structures that receive inputs from other neurons

• axon: long process (up to 1 meter) extending from the cell body; carries an output pulse

• myelin sheath: insulates the axon

• axon terminal: interface to the next neuron's dendrite

• synapse: connection between neurons

• afferent neurons carry signals toward the brain; efferent neurons carry signals away from the brain.

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